/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package controlador.visao.curso;

import java.io.IOException;
import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import javax.persistence.criteria.CriteriaQuery;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import persistencia.Cursos;

/**
 *
 * @author anibal
 */
@WebServlet(name = "ViewCursos", urlPatterns = {"/ViewCursos"})
public class ViewCursos extends HttpServlet {
//    @Resource(name = "bancoNotas")
//    private DataSource bancoNotas;

    @PersistenceContext(unitName = "ControleNotas_v0.4PU")
    private EntityManager em;

    public List<Cursos> findAll() {
        CriteriaQuery cq = em.getCriteriaBuilder().createQuery();
        cq.select(cq.from(Cursos.class));
        return em.createQuery(cq).getResultList();
    }

    public Cursos find(Object id) {
        return em.find(Cursos.class, id);
    }

    /**
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        Connection con = null;
        Statement stm = null;
        String id = request.getParameter("codigo");


        PrintWriter out = response.getWriter();
        Cursos curso = find(id);
        if (curso != null) {
            out.println("<html>");
            out.println("<head>");
            out.println("<title>Servlet ViewCursos</title>");
            out.println("</head>");
            out.println("<body>");
            out.println("<table border='1'>");
            out.println("<tr><td>Código</td><td>" + curso.getId()+ "</td></tr>");
            out.println("<tr><td>Nome</td><td>" + curso.getNome() + "</td></tr>");
            out.println("<tr><td>Cidade</td><td>" + curso.getCidade() + "</td></tr>");
            out.println("</table>");
            out.println("<a href='ListarCursos'>Voltar</a>");
            out.println("</body>");
            out.println("</html>");
        }else{ 
            out.println("<html>");
            out.println("<head>");
            out.println("<title>Servlet ViewCursos</title>");
            out.println("</head>");
            out.println("<body>");
            out.println("Curso nao encontrado..");
            out.println("</body>");
            out.println("</html>");
        }

    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
